Bump this old thread! My Moorish Idol is doing great (I hope I don't jynx it by saying that)! It eats anything I throw at it. And I've made it my mission to feed it nori daily because it just goes to town on it. It also hasn't touched any coral I have in the tank. Overall, it's been about three and a half months since I've had him. I hope he continues to do well. He's by far my favorite fish in the tank and everyone that sees the tank is drawn to him. I'm very lucky to have found a healthy specimen.